Power system stability enhancement by damping and control of Sub-synchronous torsional oscillations using Whale optimization algorithm based Type-2 wind turbines.
Sign Up to like & getrecommendations! Published in 2020 at "ISA transactions"
DOI: 10.1016/j.isatra.2020.08.037
Abstract: This paper is aimed to demonstrate the merits of a metaheuristic swarm-based optimization technique, WOA (Whale optimization algorithm), in alleviating the low-frequency torsional oscillations called SSR (Sub-synchronous resonance). The demonstration has been performed using the… read more here.
Keywords: wind; torsional oscillations; optimization; controller ... See more keywords
Torsional oscillations within a magnetic pore in the solar photosphere
Sign Up to like & getrecommendations! Published in 2021 at "Nature Astronomy"
DOI: 10.1038/s41550-021-01354-8
Abstract: Alfven waves have proven to be important in a range of physical systems due to their ability to transport non-thermal energy over long distances in a magnetized plasma. This property is of specific interest in… read more here.
Keywords: solar atmosphere; solar; magnetic pore; torsional oscillations ... See more keywords
Deformed crystals and torsional oscillations of neutron star crust
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2715
Abstract: We study breaking stress of deformed Coulomb crystals in a neutron star crust, taking into account electron plasma screening of ion-ion interaction; calculated breaking stress is fitted as a function of electron screening parameter. We… read more here.
Keywords: torsional oscillations; star crust; neutron star; deformed crystals ... See more keywords
Torsional oscillations of magnetized neutron stars with mixed poloidal-toroidal fields
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.043017
Abstract: The quasiperiodic oscillations found in the three giant flares of soft gamma-ray repeaters observed to date have been interpreted as crustal oscillations caused by a starquake following a dramatic rearrangement of the stellar magnetic field.… read more here.
Keywords: field; oscillations magnetized; torsional oscillations; magnetized neutron ... See more keywords
Impulse Moments Influence on Single-Frequency Torsional Oscillations of Nonlinear Flexible Bodies
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DOI: 10.1109/access.2022.3191642
Abstract: The method of analytical study of the influence of impulse moments on nonlinear torsional oscillations of a homogeneous constant cross-section of a body under classical boundary conditions of the first, second, and third types have… read more here.
Keywords: impulse moments; torsional oscillations; pulse momentum; moments influence ... See more keywords
Cracking Strange Stars by Torsional Oscillations
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DOI: 10.3390/universe4020041
Abstract: Strange stars are one of the possible compact stellar objects formed in the core collapse of supernovae. These hypothetical stars are made by deconfined quark matter and are selfbound. In our study, we focus on… read more here.
Keywords: strange stars; crust; stars torsional; cracking strange ... See more keywords